Table 2
Structural parameters of PG 1336−018 derived from asteroseismology, spectroscopy, and orbital light curve analysis.
| Quantity | Asteroseismology | Spectroscopy | Orbital light curve modeling | |||
|
|
||||||
| This study | C2008† | Misc. | Vučković et al. (2007) | |||
| (3G models) | (2G models) | (see Sect. 3.2) | Model I | Model II | Model III | |
|
|
||||||
| M∗/M⊙ | 0.471 ± 0.006 (1.3%) | 0.459 ± 0.005 | ... | 0.389 ± 0.005 | 0.466 ± 0.006 | 0.530 ± 0.007 |
| R/R⊙ | 0.1474 ± 0.0009 (0.6%) | 0.151 ± 0.001 | ... | 0.14 ± 0.01 | 0.15 ± 0.01 | 0.15 ± 0.01 |
| log g | 5.775 ± 0.007 (0.1%) | 5.739 ± 0.002 | 5.771 ± 0.015 | 5.74 ± 0.05 | 5.77 ± 0.06 | 5.79 ± 0.07 |
| Teff (K) | 32850 ± 175 (0.5%) | 32 740 ± 400 | 32 807 ± 82 | ... | ... | ... |
| log N(He)/N(H) | ... | ... | −2.918 ± 0.089 | ... | ... | ... |
| log (Menv/M∗) | −3.83 ± 0.06 (1.6%) | −4.54 ± 0.07 | ... | ... | ... | ... |
| log (1 − Mcore/M∗) | unconstrained | ... | ... | ... | ... | ... |
| Xcore(C+O) | 0.58 ± 0.06 (10%) | ... | ... | ... | ... | ... |
| log (L/L⊙) | 22.9 ± 0.6 (2.6%) | 23.3 ± 1.5 | ... | ... | ... | ... |
| MV(g,Teff,M∗) | 4.60 ± 0.04 (0.8%) | 4.49 ± 0.04 | ... | ... | ... | ... |
| d(V,MV) (pc) | 571∗ ± 35 (6.1%) | 619 ± 38 | ... | ... | ... | ... |
| Prot (s)‡ | 8727.7823 ± 0.0002 | ... | ... | ... | ... | ... |
| Veq(Prot,R) (km s-1) | 73.9 ± 0.5 (0.6%) | 75.9 ± 0.6 | ... | ... | ... | ... |
| i (°) | ... | ... | ... | 80.67 ± 0.06 | 80.67 ± 0.06 | 80.67 ± 0.06 |
| Vsini (km s-1) | 72.9 ± 0.5 (0.6%) | 74.9 ± 0.6 | <79* | ... | ... | ... |
Notes.
From Charpinet et al. (2008b).
Corrected for a reddening of E(B − V) = 0.021 ± 0.009. The 2008 distance estimate was not corrected for reddening.
Synchronized at the orbital period value (from Kilkenny 2011).
From Geier et al. (2010).
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